<template>
  <span >
    {{numNull? (flag? '正确':'错误'):'未完成'}}
  </span>
</template>

<script>
export default {
  props:{
    flag:Boolean,
    // item:Number,
    numNull:Boolean
  }
};
</script>

<style scoped>
.right {
  color: green;
}
.error {
  color: red;
}
.undo {
  color: #ccc;
}
</style>